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Oval|Lab Grown|IGI

1.09ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG497143900

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG497143900

Diamond specifications and retailer prices

From $590 USD
As of November 6, 2026
Save $1,443 USD (71%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,238 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.09ct lab-grown oval diamond

This 1.09ct lab-grown oval sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG497143900 or 497143900. Listed at 12 retailers as of November 4, 2026, with a 245% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.09
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497143900
Dimensions8.54 × 5.85 × 3.49 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.54 mm5.85 mm1.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497143900
Side View
Table 59.0%Crown 35°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,261 USD|Low: $590 USD|High: $3,397 USD|Avg: $1,249 USD|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4$590 USD
Retailer 7$686 USD
Retailer 10$767 USD
Retailer 2$796 USD
Retailer 8$796 USD
Retailer 5$975 USD
Retailer 1$1,261 USD
Retailer 9$1,295 USD
Retailer 6$2,033 USD
Retailer 3$3,343 USD

45 data points across 10 retailers

12 retailers$590 USD to $2,033 USD

A
Cheapest Retailer
-
$590 USD
B+
Retailer 2
-
$686 USD
View
B
Retailer 3
-
$746 USD
View
B+
Retailer 4
-
$767 USD
View
Final sale: no returns
B+
Retailer 5
-
$796 USD
View
Retailer 6
-
$796 USD
View
Price last confirmed 21 days ago
B
Retailer 7
-
$975 USD
View
B
Retailer 8
-
$1,261 USD
View
B
Retailer 9
-
$1,295 USD
View
B
Retailer 10
-
$2,033 USD
View
Most Expensive
NZ Jewellers
934ab764-8ba7-4297-9131-255ec0c6372e · Nov 5
$2,238 USD
View
Price under review
10 more retailers have this diamond
Prices start from $590 USDSave up to $1,443 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.09ct Oval
$590 USD